Clock



FIG. 1 is a perspective view of the clock of the present invention;

FIG. 2 is a front elevational view of the clock of FIG. 1;

FIG. 3 is a top plan view of the clock of FIG. 1; the left and right side views being a mirror image thereof; and,

FIG. 4 is a rear elevational view of the clock of FIG. 1.

The broken line showing of "clock hands" in FIGS. 1, 2 and 3 and of "feet" in FIG. 4 is for environmental purposes only and forms no part of the claimed design. 

The ornamental design for a clock, as shown and described. 